Finding the Fourth Proportional to 230,536.68, 318,142.44 and 128,568.75
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Solution
The fourth proportional to 230,536.68, 318,142.44 and 128,568.75 is: 177,425.89
Step by Step Solution
- Step 1: Write the proportion equation
230,536.68 : 318,142.44 = 128,568.75 : x - Step 2: Convert to fraction form
230,536.68/318,142.44 = 128,568.75/x - Step 3: Cross multiply
230,536.68x = 318,142.44 × 128,568.75 - Step 4: Simplify right side
230,536.68x = 40,903,175,832.75 - Step 5: Solve for x
x = 40,903,175,832.75/230,536.68 - Step 6: Final answer
x = 177,425.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.